Air-filter for carbureters.



F. WAGNER.

AIR FILTER FOR CARBURETERS.

APPLICATION FILED OCT. 11, 1915.

Patented Dec. 26, 1916.

- earns arnr @FFIICE.

FRED WAGNER, or MIAMI, OKLAHOMA, A-SSIGNOR 0F ONE-FOURTH 'ro JOHN nIrcHnY AND ONE-FOURTH TO CLYDE WAGNER, BOTH OF JOPLIN, MISSOURI.

AIR-FILTER FOR CARBURETE RS.

Specification of Letters Patent.

Application filed October 11, 1915. Serial No. 55,252.

To all whom z'tmay concern: I

Be it known that I, FRED WAGNER, a citizen of the United States, residing at Miami, in thecounty of Ottawa and State of. Oklahoma, have invented certain new 7 and useful Improvements in Air-Filters for air inlet pipe or port of a carbureter, and x serve to effectively prevent the dust, which is manifestly so injurious, from entering the carburetor, and thence passing in the gaseous mixture into the engine.

A further object of the invention is a device of this kind which is composed of comparatively few parts that may be readily manufactured and assembled and very easily detached from each other so thatthe device may be cleaned of the accumulation of dust and the like from time to time. And the invention also aims to generally improve devices of this kind so'as to render tlem more useful and commercially desira e.

With these and other objects in view, as

. will more fullyappear as the description proceeds, the invention consists .in certain constructions, arrangements and combinations of the parts that I shall hereinafter more fully describe and claim.

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which i Figure- 1 is a side elevation of an air filter for carbureters embodying the improvements and principles of my invention. Fig.- 2 is a longitudinal sectional view through the device. Fig. 3 is an end view thereof, and Fig. 4 is a detail transverse section on the line 4-4 of Fig. '2.

Corresponding and like parts are referred to in the following description and designated in all of the views of the accompanying drawing by like reference characters.

.4 and 5.

. My improved air filter for carbureters comprises a preferably cylindrical casing 1, preferably'provided at its ends with screw threads 2 and 3, for engagement by the screw caps The screw cap 5, just referred to, like the screw cap: 4, and easing 1 is preferably formed of metal, and is provided with a preferably centrally disposed opening in which a tube or collar '6 is secured in any desired way, said collar preferably projecting from both sides'of the capand the forwardly or outwardly projecting portion constituting a nipple whereby the device may be readily attached to the air intake pipe or in the air inlet port of the carbureter, any suitable fittings or reducing portions being used, as required.

Fitting within the casing 1 and prefer ably disposed centrally therein, is a cylinder 7 the body portion of which is composed of some reticulated or foraminous substance as, for example, wire fabric, as shown, and

the ends of which comprise preferably a tradistinction to its rim, is composed of some screen-like material as, for example,

wire fabric, as indicated at 10. This screw cap 4 tends toprevent gravel and the like from entering into the annular space between the cylinder 7 and casing 1, as is manifest, while it doesnot obstruct in any way'the in-rush of air, and manifestly, as the central portion of the screw cap 4 abuts against the imperforate bottom of the cap 9, air can only flow. inthrough the surrounding circular portion of the screw cap 4 which is substantially co-extensive with the annular space between the casing and cylinder.

A filtering medium, preferably composed of woolen flannel and designated 11, is adapted to be slipped over the reticulated or foraminous portion of the cylinder 7,

this filtering medium being preferably saturated to the desired extent with coal-oil or the like, and thus it will be understood that as the air enters through the screen=like body portion of thelscreweap 4 into the annular space 12 between the casing and cylinder, it will flow inwardly into the cylinder 7 through this filterlng medium and all of the dust will be excluded and caught by the woolen flannel, leaving only While the accompanying drawing illuspure air to flow forwardly through the collars 8 and 6 and thence into the carbureter.

From the foregoing description in connection with the accompanying drawing, the operation of my improved air filter will be apparent. In the practical use of the device, it is attached to the inlet pipe or air inlet port of a carbureter, and manifestly, as the dust-laden air enters into the space 12 between the casing 1 and its inclosed cylinder 7, its only outlet will be through the filtering medium 11 which will catch all of the dust and the pure air will pass into the cylinder 7 and thence immediately find its way through the collars 8 and 6into the carburetor. In order to clean the device, it is only necessary to remove the screw cap 4: and then withdraw the cylinder 7 with its surrounding lining 11 of woolen flannel or the like, and the dust which has accumulated on the latter can be very easily .re-

moved. Preferably, I propose to supply one or more extra flannel sleeves of filtering material whereby as, for example, on the road, a used sleeve may be easily takenoff and afresh one applied, without the necessity of cleaning the used sleeve.

trates what I believe to be the preferred embodiment of my invention, it is to be understood that the invention is not limited thereto, but that various changes may be made in the construction, arrangements and proportions of the parts without departing from the scope of the invention as defined by the appended claim.

What is claimed, is:

An air filtering device for carburetors comprising a tubular member having one end open and its opposite end provided with an eduction opening, a reticulated fabric overlying the open end of the member and detachably engaged with the member, a tubular reticulated member detachably supported within the first named member and in communication with the eduction opening, said second named member being of a diameter less than the diameter of the first named member, an imperforate cap insertible within the outer end of the second member for closing the same, and a pervious and absorbent outer covering for the second named member.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

FRED WAGNER.

Witnesses:

H, S. Coon, En FOSTER. 

